#define _CRT_SECURE_NO_WARNINGS

#include<stdio.h>
#include<ctype.h>
#include<string.h>

int main()
{
	char arr1[] = "abcdef";
	char arr2[] = "bc";
	char* ret = strstr(arr1,arr2);
	printf("%s\n", ret);

	return 0;
}